Severity Rating: ImportantRevision Note: V1.0 (November 8, 2016): Bulletin publishedSummary: This security update resolves multiple vulnerabilities in Microsoft Windows. The more severe of the vulnerabilities could allow elevation of privilege. To exploit this vulnerability, the attacker would first need to authenticate to the target, domain-joined system using valid user credentials. An attacker who successfully exploited this vulnerability could elevate their permissions from unprivileged user account to administrator.